baber/WOPTO huggingface dataset:
Patent GB-1106347-A (GB)
Title: Improvements in or relating to gas-filled discharge tubes
IPC: H01J17/56
Filed: 1965-07-15
Abstract: 1,106,347. Gas-filled thermionic-cathode tubes. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 15 July, 1965 [16 July, 1964], No. 30188/65. Heading H1D. [Also in Division H2] A gas-filled rectifier or thyratron comprises a heat-resistive metal/ceramic envelope and a filling of alkali metal vapour, the cathode surface being heated by nuclear reaction and having, during operation, a lower work function than the anode, and an external source of E.M.F. being connected between the cathode 1 and anode 6. Such a rectifier and/or thyratron may be used in a circuit for converting the low voltage D.C. output of a thermionic generator into a high voltage D.C. or A.C. output, Fig. 2 (not shown). As shown, the cathode 1 has a core 1 provided with a network of lamellµ 2, and is secured to a massive body 3 of molybdenum heated by thermal contact with the collector of a thermionic generator diode, so heated, Figs. 3, 6 (not shown). According to the circuit used the cathode may be electrically connected to the diode collector or may be insulated from it by a layer of beryllia. The anode 4 comprises a W coating on an alumina or beryllia envelope portion 7 provided with cooling fins 8. The tube may contain rare gas in addition to Cs, Na, K or Rb vapour from stainless steel reservoir 9. The grid 4 may be omitted. Specific operating temperatures, work functions and pressures are given. A rectifier or thyratron as shown, with the exception of Cs reservoir 9, may be assembled with a stack of thermionic generator diodes connected in series, channels through body 3 communicating via the interiors of the diodes with a common Cs reservoir, Fig. 5 (not shown). The rectifier or thyratron may comprise planar, instead of cylindrical, electrode structures.
Patent GB-228506-A (GB)
Title: Improvements in or relating to wax heating devices applicable for use in connection with shoe sewing machines
IPC: D05B67/00
Filed: 1924-05-12
Abstract: 228,506. United Shoe Machinery Corporation, (Assignees of Leveque, B. T.). Feb. 2, 1924, [Convention date]. Waxing thread.-A wax-pot is thermostatically controlled by rods which are immersed in the wax and effect the variation of the heat' supply by varying the distance of an electrical heater from the bottom of the pot. The wax-pot 304 is provided with a lid formed in two parts, a part 306 rigidly secured to the frame and a part 308 pivoted at 310 to swing laterally. The heating member 314 is pivoted and spring-pressed towards the bottom of the pot. The movement of the heater is controlled by rods 320, 322, the rod 320 extending through the bottom of the pot and being enclosed in a tube 324 which extends above the level of the wax. The rods 320. 322 bear on either end of a lever 326. A guide-roll 332 for the thread is supported by a bracket 330 which also supports a wax-stripper comprising a rod 334 and leaf-spring 336. The wax-pot is clamped on rods 338 on which it may be adjusted vertically.
Patent GB-299018-A (GB)
Title: Improvements relating to centrifugal machines
IPC: B04B9/12
Filed: 1928-10-18
Abstract: 299,018. Sharples Specialty Co., (Assignees of Jones, L. D.). Oct. 19, 1927, [Convention date]. Armatures; casings; cooling. - A centrifugal machine for cleaning liquids such as the lubricating oils of internal-combustion, engines, has its spindle carried in two bearings, one being placed near the bowl and supported resiliently, while the one remote from the bowl is held against any radial movement. The, hub 12 of the bowl 10, Fig. 1, is slotted and contracted to bind on the spindle 11 by a nut 14 screwed on to the hub, and the bearing A is resiliently supported in the central partition 46 of the casing. The ring-like member 19 of the bearing has an annular groove 20 serving as an oil reservoir, and a wick 22 leads from the reservoir to a, groove on the inner face of the bearing. The wick is held in place by a knot 22' and the. reservoir is closed by a cap 24. The member 19 rests upon the flange 27<1> of the support, and is surrounded by a thin metal ring 25 from which spring tongues 26 are pressed out to engage the support 27. A cap 28 is shaped to deflect any falling liquid. The other bearing B is arranged just beneath the driving motor and has a sleeve 29 engaging the spindle 11. A spherical surface on the sleeve fits within the face 31 of the support 32 and also rests upon the spring 33 on the ledge 31 of the support. A wick 36 carries lubricant to the bearing surface from the reservoir 35 formed in the support. A nut 38 prevents longitudinal displacement of the spindle and the bearing cap 50 consists of plates with a layer of felt 51 between them. The motor armature 15 is carried on a sleeve 39 with a hub 40 secured to the shaft 11 by a set screw, and the field-magnet structure is carried by brackets which also support the hood 43. The commutator is placed at the end near the bearing B. The hub 40 carries fan blades 42 which draw air through the opening 44 in the hood; the air then passes through the motor and up inside the casing 47. In the modification shown in Fig. 5, the machine is constructed for the separation and discharge of two liquids. The lower bearing B is a ball bearing, and the upper bearing A has a sleeve 71 with circumferential grooves 72 which accommodate resilient pins 73, Fig. 8, held in a bushing in the bearing support. The bearing A is lubricated by means of a wick 76 from an oil cup 75. Specification 231,877, [Class 23, Centrifugal machines &c]. is referred to.
Patent GB-505108-A (GB)
Title: Improvements relating to ship logs
IPC: G01P5/06
Filed: 1937-11-04
Abstract: 505,108. Ships' logs. WALKER, J. Nov. 4. 1937, No. 30252. [Class 97 (iil] A rotator 13 is flexibly connected 'at 12 to, and streamed freely from, a submerged outrigger 5, which together with the rotator can be readily withdrawn through the hull 1. The outrigger 5 is made of rigid, but readily frangible, material sueh as that known under the Registered Trade Mark " Bakelite" so that it will break on impact with an obstruction and is therefore easily replaceable at sea.
Patent GB-1501741-A (GB)
Title: Grinding apparatus using millstones
IPC: B02C7/13
Filed: 1975-07-18
Abstract: 1501741 Disc mills J G SCHNITZER 18 July 1975 [18 July 1974 16 Sept 1974] 30269/75 Heading B2A A disc mill has a fixed upper stone 20, a rotatable lower stone 30 and a comminuting device for material to be ground upstream of the position of entry of material into the fine-grinding region of the millstones. The comminuting device comprises a milling cutter 36 in the feed aperture 22 and monitor in the drive shaft 26 of the lower millstone 30 with cutting edges 38 perpendicular to the shaft axis, and interrupted by cut outs 40 and by at least one feed groove 24 in the wall of the feed aperture 22. This groove 24 narrows in the feed direction, and as shown two grooves 24 are provided. The gap 21 between the stones is adjusted by a locknut 32. The surfaces of the millstones have cooperating oppositely spiralled grooves 42, 48 and fine grinding grooves 50, 51. The outer periphery of the stones are flat at 52. A further embodiment employs spiral grooves 150, Fig. 5 and metering grooves 160 in the lower millstone 130. The grooves 150 divide into two individual grooves 150'. In modifications the number depth and form of the grooves 160 may be altered, they may also be provided in the upper stone: Grooves of sharp curvature, or even a single spiral groove Fig. 6, or three grooves 251, 251', 251", Fig. 9, may be provided. The spiral grooves may be of trapezoidal, triangular or rectangular cross-section. The stones may be cast in moulds using a composition of emery grains and a ceramic binder.
Patent GB-1151338-A (GB)
Title: Improvements in or relating to Rotary Piston Pumps
Inventor: KRAEMER WOLFGANG
IPC: F04C2/46
Filed: 1966-07-06
Abstract: 1,151,338. Rotary-piston Pumps. W. KRAMER. July 6, 1966 [July 10, 1965], No.30350/66. Heading F1F. A rotary-piston pump includes a piston 203 and an abutment member, or sealing rocker, 205 that is pivotally supported by a pair of stub shafts 258 in side walls 256 of the housing 202, said rocker being furnished with a sealing strip 250 that it is pressed against the piston by working fluid on the high-pressure side acting upon two faces 250, 252 thereof. Pivotal movement of the rocker away from the piston is prevented by a pair of parallel arms 257 engaging with the peripheral surface of the piston and fixed to the rocker. A second embodiment of the pump, Figs. 5 and 6 (not shown), differs from that shown mainly in the bearing (307) for the rocker is lubricated by a proportion of the working fluid, which is a liquid, flowing thereto through at least one passage (325) in the rocker. A prior-art pump of somewhat similar kind is described with reference to Fig. 1 (not shown) for the sake comparison; and, for a similar reason, a spring (210) is indicated in Fig. 7 (not shown), which spring is not included in the pump according to the invention.
Patent GB-618289-A (GB)
Title: Improvements in or relating to gully traps and covers therefor
IPC: E03F5/06
Filed: 1946-10-11
Abstract: 618,289. Gulley trap covers. HAMMOND, J. Oct. 11, 1946, No. 30375. [Class 33] In a gulley trap A of the kind used in the external drainage systems for buildings, the cover C thereof comprises an apertured plate which is flexible in a direction normal to its surface and is secured in position by its resistance to such flexure or by residual reflex stresses, said resistance or residual stresses being such that the cover cannot easily be removed from its seating D without the use of a tool designed for the purpose. In the form shown, the cover is circular with a bevelled edge F to engage a complementary V-shaped groove forming the seating D, radial or concentric rows of perforations E, one or more radial stiffening projections on its underside, and a central dependant boss G with a diametrically arranged slot H and downwardly facing recesses I at opposite sides thereof. The cover is made of natural rubber, oil-resisting synthetic rubber, or like material that can be flexed into part spherical shape. A tool for this purpose may comprise a' ring N to bear upon the cover, radiating arms O, a bush P, spaced cheeks V to engage the sides of fork limbs 5 of an actuating lever M which is pivoted at T to a stem L guided in the bush P and formed at its lower end with a T-shaped head Q adapted to pass through the slot H and engage the recesses I. The fork limbs S have identical cam profiles U to engage the upper end of the bush P so that, on raising the lever M, the stem L is lifted and the cover C is flexed into part spherical shape whereby it may be inserted into, or removed from, the groove D.
Patent GB-299067-A (GB)
Title: Improvements in or relating to the manufacture of artificial resins and products containing the same
IPC: C08G8/26
Filed: 1928-10-20
Abstract: 299,067. British Celanese, Ltd., (Assignees of Moss, W. H.). Oct. 21. 1927, [Convention date]. Addition to 299,066. Phenol-ketone-aldehyde resins are produced by condensing a phenol-ketone resin prepared by the process of the parent Specification with an aldehyde. The phenol-ketone resin, such as diphenylol-propane-acetone resin may be heated with formaldehyde in presence of an acid. The diphenylol-propane-acetone resins may be made by condensing phenol-acetone (diphenylol propane) with acetone in presence of an acid, or by condensing equimolecular proportions of phenol and acetone. The proportion of formaldehyde is preferably one molecule for each molecule of diphenylol-propane used in the production of the phenol-acetone, resin. The acid catalysts mentioned are hydrochloric and phosphoric acids. The condensation product is washed with water and impurities are removed by distillation in steam. The resin is fusible and non-reactive, and is soluble in alcohol, acetone, and benzene and in the usual solvents of cellulose ester lacquers. It may be used as an ingredient of lacquers containing cellulose formate, acetate, propionate, butyrate, and nitrate, and cellulose ethers such as methyl, ethyl, and benzyl cellulose or for plastic compositions. An example of a lacquer is cellulose acetate, synthetic resin, softeners such as triacetin, acetone, and ethyl lactate; ether softeners such as diethyl phthalate may be used instead of triacetin, and other solvents of high boiling point instead of ethyl lactate. The Specification as open to inspection under Sect. 91 (3) (a) is not limited as to the ketonephenol resin employed. This subject-matter does. not appear in the Specification as accepted.
Patent GB-1253575-A (GB)
Title: Baghouse apparatus
Inventor: BALLARD WADE ELTON
IPC: B01D46/02
Filed: 1969-06-16
Abstract: 1,253,575. Gas-filter of the gas-pervious bag type. SLICK CORP. 16 June, 1969, No. 30457/ 69. Heading B1T. In a gas-filter comprising a group of tubular, gas-pervious fabric bags, each bag (Fig. 2) is connected at its lower end to a thimble 42 positioned in an aperture 44 in a tube plate 14 and at its upper end to tensioning means 24, and comprises at least three sections 18a, 18b, 18c releasably connected by rigid couplings 40 which oppose inward collapse of the bag. The rigid couplings 40 are preferably metallic, and have internal beadings; and the bag sections have flexible snap rings, secured to at least one end, and adapted to be forced past the beadings. In the filter chamber 12 (Fig. 1) there are several groups of such bags; and each group communicates with a respective dust discharge hopper 16 having a worm conveyor 36. By selectively opening valves in lines 35 a selected group of bags is backwashed.
Patent GB-1130268-A (GB)
Title: Improvements in or relating to gas turbine by-pass engines
Inventor: MONAGHAN WILLIAM THOMAS
IPC: F02K1/74
Filed: 1967-07-01
Abstract: 1,130,268. Deflecting propulsive jets. ROLLSROYCE Ltd. 1 July, 1967, No. 30458/67. Heading B7G. A by-pass jet propulsion engine 20 has its outer casing split on an inclined annular face 40 so that the rear portion 18 may be moved bodily aft by a plurality of jacks 46 together with an aft portion of jet pipe 28, attached to portion 18 by struts 26. The portion 28 is spaced from the forward part of the jet pipe and the gap is filled by a pair of opposed scoop members 34, 36 pivotally mounted on a common axis 38 and each connected by a link 60 to the casing portion 18, aft movement of which causes members 34, 36 to pivot from the full line positions in Fig. 2 to the dotted line positions whereby they block off the by-pass duct 24 and the jet pipe to cause jet gas and by-pass air to flow outwardly and forwardly through the gap in the casing formed by aft movement of portion 18. To increase the effectiveness of the blocking members and as shown more clearly in Fig. 3, each is formed with wings 66, 68 respectively. The opening in the casing may be provided with retractable deflector vanes.
Patent GB-735618-A (GB)
Title: Rear wheel suspension for motor vehicles
IPC: B62K25/00
Filed: 1953-11-04
Abstract: 735,618. Spring-suspensions for motor-cycles. JOSIF, J., and VENYGR, K. Nov. 4, 1953 [June 24, 1953], No. 30481/53. Class 136(3). In a motor cycle rear wheel suspension of the kind where the rear wheel is carried by the free end of a pivotally mounted swinging arm, the swinging arm 17 is pivotally mounted within the gear box by means of bearings 13, 14 on the shaft 6 which together with the shaft 3 carries the speed changing gear. The bearings 13, 14 may be made in two parts. To facilitate dismantling of the arm 17, bushings 16 are interposed between the shaft 6 and the bearings 13, 14. On withdrawing the bushings in an axial direction the arm 17 can be detached from the shaft 6. Alternatively, the shaft 6 may be subdivided in the range of the bearings so that by disconnecting the individual sections of the shaft the swinging arm is free to be withdrawn from the gear box. The arm 17 is formed by a tubular steel pressing so that it surrounds the drive shaft 8 and bevel gears 10. The rear wheel 20 is carried by a spindle 7 which is supported in an overhung fashion by a bearing 19 on the arm 17. Two arms 17 may be provided, one at each side of the rear wheel to support the spindle 7 at both ends. The arm 17 has a downwardly extending projection which is connected to the gear box through a shock absorber 18.
Patent GB-813894-A (GB)
Title: Improvements in and connected with electrostatic precipitators
IPC: B41B1/04
Filed: 1957-09-30
Abstract: 813,894. Electrostatic precipitation. FAIRWEATHER, H. G. C. (Svenska Flaktfabriken A. B.). Sept. 30, 1957, No. 30542/57. Class 39(1). The plane collecting-electrodes of an electrostatic precipitator are placed parallel to the gas flow, the trailing edge 16 of each electrode being bent, as shown in Figs. 1, 2, to form a semi-circular baffle and the leading edge 15 preferably being of tubular cross section, thereby imparting rigidity to the structure. Each electrode 14 is supported by a hook 34 attached to its upper edge, and a tab 35 fixed to the lower edge fits into slots in a shock bar 26, Fig. 4, spacing being maintained by a pin 36 and studs 28 which also serve to vibrate electrodes 14 when a hammer 25 strikes the shock bar. Rows of electrodes are rapped in succession by a series of hammers 25 at different circumferential positions on a shaft 21. Fig. 7 shows the cross section of a collecting electrode referred to as being of known construction.
Patent GB-188951-A (GB)
Title: Improvements in temples for use in looms for weaving
IPC: D03J1/22
Filed: 1921-11-16
Abstract: 188,951. Whitehead, T. E., and Whitehead, A. V., (trading as Harling, G.). Nov. 16, 1921. Temples. - A temple comprises a spindle a, which is secured to the usual bracket attached to the loom frame, one or more inclined rotatable rings b having steel pins c, and a sleeve d freely mounted on the spindle a and provided on its periphery with screw-threads e<1>. The cloth is pressed into contact with the temple in the usual manner, whereupon the rotation of the sleeve d tends to feed the cloth towards the rings b, which engage the selvage thereof. The sleeve d may be made cylindrical or conical and the threads either square nr V-shaped. The threads may be covered with a rubber tube. According to the Provisional Specification, the roller, on which the screw-threads are formed may be made of brass, bone, papier machÚ, ebonite, &c., and the fabric may pass between an upper roller and one or two lower rollers. Each roller mav be formed with both right and left hand threads so as to have lozenge-shaped projections, and the surface of the threads may have grooves therein.
Patent GB-1263031-A (GB)
Title: Photocopying machine
Inventor: BREUERS THEO PIERRE CRETIEN
IPC: G03G15/04
Filed: 1970-06-24
Abstract: 1,263,031. Photo-copying machines. OC- VAN DER GRINTEN N.V. June 24, 1970 [June 24, 1969], No.30598/70. Heading G2A. In a photo-copying machine in which the copy material is conveyed continuously through the exposure station at a speed which can be varied, and is exposed to a printing light whose intensity can also be varied, a single control member is provided which can adjust either variable (speed or intensity) while the other remains constant. As shown, the single control member is a spindle 2 with an operating knob 1, which spindle carries the sliding arms 3, 4 of respective potentiometers 5, 6. Half of potentiometer 5, which controls the speed of movement of the copy material, is short circuited by a connection 15, and the opposite half of potentiometer 6, which controls the intensity of the light, is short circuited by a connection 16. Initially, spindle 2 is rotated anti-clockwise as far as it will go, and this is the starting position. When spindle 2 is now turned clockwise, the output voltage from potentiometer 5 gradually increases as arm 3 moves from terminal 8 to terminal 10, while the output voltage from potentiometer 6 remains constant as arm 4 moves over the short circuited part from terminal 12 to terminal 14. Thus the speed of movement of the copy material is increased from a minimum to a maximum value while the light intensity remains constant. With further clockwise rotation of spindle 2, the speed remains at this maximum value while the light intensity is reduced from its maximum value to zero. In the embodiment of Fig. 3 (not shown) the same result is obtained by a mechanical arrangement, in which a central shaft (25) is connected by gearing alternately to one or the other of two adjacent shafts (30, 31) which are connected to means for varying speed and intensity respectively.
Patent GB-843465-A (GB)
Title: Improvements in or relating to apparatus for the continuous production of power fromcontrolled explosions
IPC: F04F13/00
Filed: 1955-10-26
Abstract: 843,465. Instantaneous steam generators. SPALDING, D. B. Oct. 23, 1956 [Oct. 26, 1955], No. 30647/55. Drawings to Specification. Class 123(2) [Also in Group XXVIII] An explosive medium is introduced into a pressure exchanger (see Group XXVIII) and is compressed and exploded by fluid therein; subsequently water is sprayed into the exchanger and the resulting steam is extracted therefrom.
Patent GB-1192367-A (GB)
Title: Improvements relating to Pick-Up Tubes for Television and Like Purposes
Inventor: LUSBZYNSKI HANS GERHARD
IPC: H01L21/00
Filed: 1966-07-08
Abstract: 1,192,367. Image pick-up tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. 10 July, 1967 [8 July, 1966], No. 30669/66. Heading H1D. The lead oxide layer of the photo-conductive target of a pick-up tube is produced with an excess of oxygen and the excess removed by baking as an output signal is monitored. An increase in resolution of acceptable degree of the tube indicates completion of the process. The baking takes from 1 to 10 mins. at 130‹ to 160‹ C., and is effected by means of a hotplate applied to the window of the tube or by a stream of hot air. The oxygen lost from the layer is absorbed by getters. The initial excess of oxygen may be produced by ion bombardment in an oxygen atmosphere.
Patent GB-376601-A (GB)
Title: Improvements in or relating to methods of, and machines for, mixing materials
IPC: B01F9/00
Filed: 1931-11-05
Abstract: 376,601. Mixing-machines. BOOTH, V., The Croft, Canal Road, and BOOTH, W., Holmeville, Hightown, both in Congleton, Cheshire. Nov. 5, 1931, No. 30695. [Class 86.] A mixing-machine comprises a drum which is rotated simultaneously about longitudinal and transverse axes, the transverse axis being near one end of the drum, which is formed with a cylindrical part merging into a conical part ; both motions are derived from a single shaft through worm and belt gearing respectively. The drum, which is provided with a removable lid secured by pivoted clamps 34, is mounted on a shaft 26 carried by a yoke 19, and is rotated about its longitudinal axis by means of bevel gearing 30 on a shaft 28 driven by a belt from the main shaft 3. The drum is rotated about a transverse axis A, A by means of a worm wheel 15 also driven from the shaft 3.